Datasheet FWP-50A22FA Specification

Ferrule — FWP 690V/700V (IEC/UL):
20-100A, Striker Optional

Dimensions - mm (inches)

FWP (22 x 58mm)

Specifications
Description: Ferrule style high

speed fuses with and without
indicating striker.

Dimensions: See dimensions
illustration.

Ratings:

Volts: — 690Vac (IEC)

— 700Vac (UL)

Amps: — 20-100A

IR: — 200kA RMS Sym.

— 50kA @ 500Vdc

Agency Information: CE, UL Recognition
Electrical Characteristics
Total Clearing I

2

t

The total clearing I

2

t at
rated voltage and at power
factor of 15% are given in
the electrical
characteristics. For other
voltages, the clearing I

2

t is
found by multiplying by
correction factor, K, given
as a function of applied
working voltage, Eg, (rms).

Arc Voltage

This curve gives the peak
arc voltage, UL, which
may appear across the
fuse during its operation
as a function of the
applied working voltage,
Eg, (rms) at a power factor
of 15%.

Power Losses

Watts loss at rated current
is given in the electrical
characteristics. The curve
allows the calculation of
the power losses at load
currents lower than the
rated current. The
correction factor, Kp, is
given as a function of the
RMS load current, Ib, in %
of the rated current.

Catalog Numbers

Electrical Characteristics

Rated I2t (A2Sec)
Catalog Current Minimum Clearing At Watts
Numbers Size RMS-Amps Melting Rated Voltage Loss

Without Striker
FWP-20A22Fa 20 19.0 260 5
FWP-25A22Fa 25 34.0 410 6
FWP-32A22Fa 22 x 58mm 32 53.5 605 8
FWP-40A22Fa (

7

⁄8" x 29⁄32") 40 68 750 9
FWP-50A22Fa 50 135 1600 9.5
FWP-63A22Fa 63 280 3080 11
FWP-80A22Fa 80 600 6600 13.5
FWP-100A22Fa 100* 1100 12500 16
With Striker
FWP-20A22FI 20 19.0 260 5
FWP-25A22FI 25 34.0 410 6
FWP-32A22FI 22 x 58mm 32 53.5 605 8
FWP-40A22FI (

7

⁄8" x 29⁄32") 40 68 750 9
FWP-50A22FI 50 135 1600 9.5
FWP-63A22FI 63 280 3080 11
FWP-80A22FI 80 600 6600 13.5
FWP-100A22FI 100* 1100 12500 16

*IEC/UL Voltage rating 690/700

Features and Benefits

• Excellent cycling capability and DC performance

• Low arc voltage and low energy let-through (I

2

t)

• Low watts loss in a compact size

• Used with finger-safe holders/blocks

Typical Applications

• DC common bus

• DC drives

• Power converters/rectifiers

• Reduced voltage starters

K

1.4

1.2

1.0

0.6

0.8

0.7

0.9

0.5

0.4

0.3
200 300 400 500 600 700

E

g

U

L

1.4

1.2

10

3

6

8
7

9

5

4

3

200 300 400 500 600 700

E

g

Kp

1.0

0.8

0.4

0.5

0.6

0.3

0.2

0.1
30 40 50 60

70

80 90 100%

I

b

Data Sheet: 720026

58.0

(2.283")

15.0

(0.591")

22.2

(0.875")

With Striker

Without Striker

FWP with

striker

option.

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

209

High Speed

Fuses

High Speed Fuses

5

(0.197")

66 (2.598")

58 (2.283")

16 (0.630"

22.2 (0.874")

For product data sheets, visit www.cooperbussmann.com/datasheets/ulcsa

210

High Speed Fuses

Ferrule — FWP 690V/700V (IEC/UL): 20-100A,
Striker Optional

10

4

Prospective Short-Circuit Current Symmetrical RMS

Peak Let-Through Current

2

6

4

2

6

4

246 246 246

10

2

10

3

10

2

10

3

10

4

10

5

FWP-20A22F

FWP-25A22F

FWP-32A22F

FWP-40A22F

FWP-50A22F

FWP-63A22F

FWP-80A22F

FWP-100A22F

2

Peak Let-Through Curve

Without Striker
FWP 20-100A: 660V/700V (22 x 58mm)

Time-Current Curve

Data Sheet: 35785291

4

10

6
4

2

3

10

6
4

2

2

10

6
4

2

1

10

6
4

FWP-20A22F

2

FWP-25A22F

0

FWP-32A22F

10

FWP-40A22F

6
4

2

–1

10

Virtual Pre-Arcing Time In Seconds

6
4

2

–2

10

6
4

2

–3

10

6
4

2

–4

10

1

10

22468 2

2

10

Prospective Current In Amps RMS

FWP-50A22F
FWP-63A22F
FWP-80A22F
FWP-100A22F

2468

3

10